Proper use and maintenance of the wire rope is not only related to the safety of the lifting equipme ......

At the 2018 Boao Forum for Asia, President Xi Jinping proposed "releasing restrictions ......

A method for identifying the purity of calcium hydroxide: Calcium hydroxide is easily hardened with ......

The "Zhongzhi Vacuum Freeze-drying Technology Joint Research Laboratory" was recently un ......

At present, most of the domestic smart lockers use bar code systems. This system is not only easy ......

The development of pollution-free agriculture and the production of pollution-free agric ......

In November 2017, the National Semiconductor Lighting Engineering R&D and Industry Alliance host ......

In the latest revised "Fire Protection Law of the People's Republic of China" and &q ......

Fire assay method (The fire assay method) is the metallurgical principles and techniques applied to ......

Now that the Internet has become one of the more and more popular sales channels in the modern era ......

Original title: Global New Energy Cars Follow-up Editor's Note: According to a reporter from ......

(1) Check that the drive belt is loose, and if the manual rotation of the pulley is stuck, it is exc ......